<!DOCTYPE html>
<html>
<head>
	<title></title>
	<style type="text/css">
		*{
			margin: 0;border: 0;padding: 0;
		}
	</style>
</head>
<body>
<div id="box"></div>
<script type="text/javascript">
	document.getElementBy
</script>
</body>
</html>